<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>文档事件源</title>
		<script src="js/jquery-1.11.1.js"></script>
		<style>
			
		</style>
	</head>
	<body>
		<button>按钮</button>
		<div></div>
		<script>
			$(function(){
				$("button").click(function(){
					$("div").css({
						"width":"200px",
						"height":"200px",
						"background-color":"#55ffff"
					});
				});
			});
			
		</script>
	</body>
</html>